I ask you to pay attention to the unscrupulous manufacturer of Instal, FLP Inyukhin, who, in such a difficult time, clearly using his impunity, really poisons low-quality products.The products of this manufacturer are not a cheap segment, therefore, the quality should be at the same level.But there is clear irresponsibility and impunity.I bought a sealed box, it was planned to take it to the hospital not for one person, but as a result, spoiled good intentions and money thrown away.Shame on such a manufacturer!!!